The Apex™ Pro Run Vest is designed to carry all the essentials you need for race day without slowing you down. The sleek, apparel-like fit provides unparalleled comfort and performance with every stride—while still offering plenty of space for all your run-essentials. Featuring a deployable and fully-removable trekking pole, this vest allows you to easily adapt to any terrain. * Dimensions: 16.14" x 13.39" x 5.12" * Made with recycled materials **Features:** * RECCO® Reflector: The built-in lightweight rescue transponder ensures safety, security, and ease of mind. * Trekking Pole Quiver: Stowable and fully removable. * Water-Resistant PU-coated Zippered Pocket: Store electronics like your GPS in this secure, water-resistant pocket. * Removable Front Trekking Pole Attachments: Stash your trekking poles when you need your hands to be free. * Dual Adjustable Chest Straps: Ensures the perfect fit every time you lace up. * Secure Phone Pocket: Keep your phone easily accessible but securely stored while you run. * Safety Whistle: Stay safe and make sure you can be heard no matter how far your trail takes you. * Stretch Overflow Pockets: Shed light layers and stash extra gear with this stretch overflow pocket system. * Tube Trap: Keep your hydration reservoir tube securely fastened even on rough terrain. * Key Clip: Make sure your car or house keys stay right where you need them. * Compatibility: The Apex Pro comes with two 17oz Quick Stow Flasks. No reservoir is included but up to a 2L Reservoir will fit. We recommend a 1.5L Crux reservoir for the best fitment. **Chest Fit Sizing:** * XS: 23" - 32" * S: 30" - 37" * M: 36" - 40" * L: 38" - 44"